Here's the definition that's on our security deposit page, which doesn't get into the nitty-gritty: Normal wear and tear is a term that Wisconsin law does not define.
(3)Protein Fat-Free Percentage, Protein Fat-Free Content, PFF Percentage, PFF Content or PFF of a product means the meat protein (indigenous to the raw, unprocessed pork cut) content expressed as a percent of the non-fat portion of the finished product.
Meat products from wild game are subject not only to United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) regulations but the Food and Drug Administration (FDA) and the U.S. Fish and Wildlife Service (FWS).